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WO1995033364A1 - Circuit de commande de pression destine a une charrue reversible couplee a plusieurs dispositifs de preparation des sols - Google Patents

Circuit de commande de pression destine a une charrue reversible couplee a plusieurs dispositifs de preparation des sols Download PDF

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Publication number
WO1995033364A1
WO1995033364A1 PCT/GB1995/001270 GB9501270W WO9533364A1 WO 1995033364 A1 WO1995033364 A1 WO 1995033364A1 GB 9501270 W GB9501270 W GB 9501270W WO 9533364 A1 WO9533364 A1 WO 9533364A1
Authority
WO
WIPO (PCT)
Prior art keywords
plough
packer
combination
soil preparation
relative
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/GB1995/001270
Other languages
English (en)
Inventor
Kjell-Egil Stangeland
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kverneland Klepp AS
Original Assignee
Kverneland Klepp AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kverneland Klepp AS filed Critical Kverneland Klepp AS
Priority to AT95921024T priority Critical patent/ATE191828T1/de
Priority to DE69516361T priority patent/DE69516361T2/de
Priority to DK95921024T priority patent/DK0712270T3/da
Priority to EP95921024A priority patent/EP0712270B1/fr
Priority to US08/592,322 priority patent/US5740868A/en
Publication of WO1995033364A1 publication Critical patent/WO1995033364A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B17/00—Ploughs with special additional arrangements, e.g. means for putting manure under the soil, clod-crushers ; Means for breaking the subsoil
    • A01B17/004—Clod-crushers

Definitions

  • This invention relates to a pressure control circuit for a combination of a reversible plough with a plurality of soil preparation devices coupled therewith, in which each device is adapted to be trailed behind the plough via a pivotable coupling which defines a substantially horizontal swivel axis extending generally parallel to the direction of travel.
  • the invention has been developed in connection with a reversible plough / multiple soil preparation device combination, in which a number of separate devices are mounted at suitable mounting points on movable parts of a frame of a reversible plough.
  • the soil preparation devices comprise "packers”.
  • a reversible plough usually comprises a headstock (by which the plough is attached to the lifting arms at the rear of a tractor), a carrying beam, and a set of pairs of reversible plough bodies mounted at positions spaced apart along the length of the beam, and which can be reversed in order that the plough body of each pair which happens to be in a lowered ploughing position can be rotated through about 180° so as to be in an uppermost inoperative position, and the previously uppermost ploughing body can then be brought to the lowered ploughing position.
  • packers When packers are mounted individually on movable parts of a frame of a reversible plough, this may be carried out using swivel coupling and as disclosed in, for example, the Packomat brochure of Kverneland Klepp published May 1993, or as shown in more detail in Swedish patent application No 920074-2 and European patent application No 93103829.3 (publication No 0560319A) .
  • the swivel coupling which is used to couple a packer to a movable packer arm (or other movable part of the frame of a reversible plough) serves to form a towing connection which allows the packer to be towed behind the plough, but which also allows the packer to be raised from the ground and to maintain a substantially horizontal attitude while the packer is adjusted from a soil working position at one side of the plough, to a working position at the other side of the plough, when plough body reversal takes place.
  • the mass of the packer acts via its packer rings to break-up the soil turned-over previously by the plough bodies, and so as to make the ground ready for seeding.
  • the weight of the packer is borne partly by the engagement of the packer rings with the ground (to support the rear end of the packer), and also by the swivel coupling of the packer to the plough frame, which supports the front end of the packer.
  • the present invention therefore seeks to provide an improved height control system for the soil preparation devices of a multiple device / reversible plough combination, in which a self adjusting action can be obtained to compensate for individual up / down movements of the soil preparation devices relative to their swivel mountings.
  • a combination of a reversible plough with a plurality of soil preparation devices coupled therewith comprising: a headstock by means of which the combination can be mounted on the lifting arms at the rear of a propelling vehicle; a plough frame including a carrying beam, mounted on said headstock; a number of pairs of reversible plough bodies, mounted on the carrying beam, and rotatable through approximately 180° in order to reverse the plough bodies of each pair; and, a number of soil preparation devices each mounted on a movable part of the plough frame via a respective swivel coupling which allows the device to be towed and also to be suspended therefrom during plough body reversal, and which coupling also defines a substantially horizontal swivel axis extending generally parallel to the direction of travel and about which the device can pivot during plough body reversal; characterised in that a common hydraulic pressure control circuit is provided to control the height of each device relative to the respective swivel coupling
  • the common hydraulic pressure control circuit therefore provides automatic self-compensating adjustment of the actuator cylinders, when the respective soil preparation device move up and / or down relative to their swivel couplings as they follow the contour of the ground.
  • the self-adjusting capability of the actuator cylinders in the common hydraulic circuit reduces the impact on the plough frame of any obstacle being struck by any one of the packers, and also tends to equalise the pressure in the actuator cylinders and therefore the pressure exerted on the ground by the packers.
  • An actuator cylinder will usually comprise an assembly of cylinder, piston and piston rod, and upon the application of hydraulic fluid pressure to one, or the other side of the piston within the cylinder will result in relative extension or contraction of the overall length of the piston / cylinder assembly.
  • the manner by which the assembly is mounted in position is not critical, and the piston rod may be fixed, and the cylinder arranged to move relative thereto, or vice versa. Both these arrangements are intended to be included within the definition above of "relative adjustment movement of an actuator cylinder" .
  • the type of reversible plough / multiple packer combination with which the invention may be used is not critical, provided only that the plough is a reversible plough, which may be of the fully mounted, or semi-mounted type, and which may have more than one separate ploughing section, and provided also that there is two or more separate packers each mounted on the plough frame via respective swivel couplings which allow each packer to move from one side to the other during each plough body reversal operation.
  • each packer may be integrated with a seed distribution unit, such unit forming an integral part of the packer in the sense that it is coupled rigidly therewith, and is capable of moving with the packer during the adjustment of working position of the packer caused by plough body reversal.
  • the preferred fluid medium used to operate the actuator cylinders comprises hydraulic fluid, but other fluids may be used, including compressed gas, possibly in conjunction with an accumulator.
  • Figure 1 is a plan view of part of a multiple packer / reversible plough combination to which the invention may be applied;
  • Figure 2 is a side view corresponding to Figure 1 ;
  • Figure 3 is a perspective view from one side of part of a further type of multiple packer / reversible plough combination to which the invention may be applied;
  • Figure 4 is a diagrammatic plan view of a multiple packer / reversible plough combination which may incorporate the invention
  • Figure 5 is a perspective illustration from the rear of a packer which may be incorporated or integrated within a multiple packer / reversible plough combination according to the invention
  • Figure 6 is a side view corresponding to Figure 5.
  • Figure 7 is a diagrammatic illustration of a common pressure control circuit and actuator cylinders for controlling the height of a set of packers integrated into a packer / reversible plough combination according to the invention.
  • the reversible plough / packer combination comprises a fully mounted plough 1 having reversible plough bodies 10, and an integrated packer 3 towed behind the frame of the plough via a swivel coupling 2.
  • the plough 1 has a carrying beam 5 coupled with a usual headstock by which the plough is coupled to the rear lifting arms of a tractor, and a packer arm 4 projects rearwardly from beam 5 and on the trailing end 6 of arm 4 the swivel coupling 2 is mounted, and which forms a towing connection for packer 3, and also defines a horizontal swivel axis 2A about which the packer 3 can pivot during plough body reversal, when beam 5 is rotated through approximately 180° relative to the headstock.
  • the packer 3 is able to follow the rotational movement of the beam 5, by being lifted upwardly from the ground, and then moving laterally before being lowered to the ground again, on an opposite side, and available to cooperate with the other plough body of each pair of reversible ploughs.
  • Figure 1 is a plan view of the reversible plough / packer combination, and Figure 2 shows a side view.
  • the packer 3 has a usual set of packer rings 7 which break down the soil previously turned over by the plough bodies 10, and the soil preparation action carried out by the rings 7 is achieved mainly by the weight of the packer.
  • a manually operated adjusting device 11 is provided, which can alter the inclination of a mounting frame 12 which mounts the packer rings 7 on the swivel coupling 2 , and operation of adjustment control 11 allows the angle of the mounting frame 12 to be adjusted, in order to raise or lower the packer rings 7 relative to the swivel coupling.
  • Figures 1 and 2 show a single section of a reversible plough, and one packer integrated therewith to form a reversible plough / packer combination, and this is to set-out the background to subsequent description of preferred embodiments of the invention.
  • Preferred embodiments of the invention comprise a combination of a reversible plough, with more than one ploughing section, and a number of separate packers integrated therewith. This is shown schematically only in Figure 4 of the drawings, which comprises tractor 30 which is propelling a two-part reversible plough combination comprising a plough frame including forward section 31 , intermediate section 32 and rear section 33, which are coupled together in known manner. Also, respective packers 31a and 33a are coupled with plough sections 31 and 33.
  • At least forward section 31 and rear section 33 carry reversible plough bodies, and which can together be adjusted between left side ploughing and right side ploughing, by operation of a suitable driver control, which adjusts the plough bodies in each section to rotate through about 180°, all of this being well known to those of ordinary skill in the art, and not described in detail herein.
  • the respective packers also adjusted at the same time as the plough frame sections.
  • FIG 3 shows a further example of an integrated reversible plough / packer combination, to which the invention may be applied, when such combination is built-up to form a multiple packer / reversible plough combination, e.g. as shown schematically in Figure 4.
  • a reversible plough designated generally by reference 40 has reversible plough bodies 41 mounted on beam 42, which in turn is mounted at its forward end on headstock 44 via a transverse coupling block 43.
  • Headstock 44 is mounted on lifting arms 45 and top link 46 at the rear of a tractor, the rear wheels of which are shown in part outline by reference 47.
  • a packer arm 50 is mounted at its forward end 51 on coupling block 43 also, and has a swivel coupling 53 mounted at its rear end 52 via which packer 58 is mounted.
  • the swivel coupling 53 includes a mounting tube 54 which defines a horizontal swivel axis about which packer 58 can swivel during plough body reversal.
  • Packer rings 59 are shown, as well as manual adjustment control 60 for adjusting the height of the packer rings 59 relative to swivel coupling 53.
  • Plough body reversal takes place by rotating coupling block 43 about a substantially horizontal axis, defined by headstock 44, and through approximately 180°, and this raises the presently lowermost plough body 41 to an inoperative position, and rotates the presently uppermost plough body to the lowered ploughing position.
  • packer arm 50 also rotates through 180°, and this lifts the packer 58, moves it laterally, and then lowers it to the ground on the opposite side, to cooperate with the plough bodies 41 which are now in the ploughing position.
  • FIG. 5 to 7 of the drawings shows a preferred embodiment of packer, and a hydraulic pressure control circuit for controlling the height of the packer rings relative to the swivel coupling, and for controlling the ground pressure. Only a single packer is shown in Figures 5 and 6, whereas Figure 7 shows part of a hydraulic control circuit, which is used to control the height of a set of separate packers which are intended to be integrated within a multiple packer / reversible plough combination according to the invention.
  • the packer is designated generally by reference 70 and comprises packer rings 71 mounted on a common horizontal axle and carried by a mounting frame 72 which is pivotally connected at its upper end to a swivel coupling 73.
  • the swivel coupling 73 can be mounted on the end of a packer arm, or any other movable part of the frame of a reversible plough section with which the packer 70 is. to be integrated.
  • two or more packers 70 will be integrated with corresponding reversible plough sections to form a multiple packer / reversible plough combination according to the invention.
  • each packer 70 is integrated into the combination, and a common hydraulic pressure control circuit is provided, part of which is illustrated in Figure 7, and which serves to control the height of each packer 70 relative to the respective swivel mounting 73.
  • the circuit comprises respective actuator cylinders associated one with each packer, and which is arranged to adjust the height of the working elements (rings 71) of each packer relative to the swivel mounting 73.
  • An actuator cylinder is shown by reference 74 in Figures 5 and 6, which comprises an assembly of cylinder, piston rod and piston which are relatively movable in order to lengthen or shorten the overall length of the assembly, when it is required to adjust the height of the packer rings 71 relative to the swivel coupling 73 by pivoting about the generally horizontal pivot connection between frame 72 and the coupling 73.
  • the actuator cylinders 74 are in fluid communication with each other via common pressure lines 75 and 76 so that the pressure in each cylinder chamber below pistons 77 communicate with common pressure line 75, whereas the cylinder chambers above the pistons 77 communicate with each other via common pressure line 76.
  • the common hydraulic pressure control circuit therefore provides automatic self-compensating adjustment of the actuator cylinders 74, when the respective packers 70 move up and / or down relative to their swivel couplings 73 as they follow the contour of the ground.
  • a respective seeding unit may be integrated with each packer to form an integrated unit, to be movable therewith during packing operations and to carry out simultaneous seeding, and also being capable of moving with each packer during adjustment of its position when plough body reversal takes place.
  • packer with packer rings or discs is only one example of a soil preparation device which may be integrated with a respective plough section of a reversible plough / multiple soil preparation device combination according to the invention.
  • other types of soil preparation device than "packers" may be used in a combination of a reversible plough and multiple soil preparation device according to the invention.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Soil Working Implements (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Cookers (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Networks Using Active Elements (AREA)

Abstract

Un combiné charrue réversible/rouleaux multiples comprend: une traverse d'attelage avec laquelle on peut monter ce combiné sur des bras de levage (45) disposés à l'arrière d'un tracteur, un timon (5, 42) monté sur cette traverse d'attelage, plusieurs paires de socs de charrue réversibles (10, 41) montés sur ce timon (5, 42) et pouvant tourner sur environ 180° pour inverser les socs de chaque paire, et un certain nombre de rouleaux (3, 58, 70) montés chacun sur une partie mobile (4, 50) du cadre de charrue par l'intermédiaire d'un couplage par pivot (2, 53, 73) permettant de le tracter et de le suspendre pendant l'inversion du corps de charrue. Ce couplage définit aussi un axe de pivotement, sensiblement horizontal et parallèle à la direction de déplacement, autour duquel le rouleau peut pivoter pendant l'inversion du corps de charrue. Ce combiné se caractérise par un circuit commun de commande de pression hydraulique qui règle la hauteur de chaque rouleau par rapport à son montage sur pivot, et par le fait que ce circuit comprend des cylindres (74) d'actuateurs respectifs associés à chaque rouleau et prévus pour régler la hauteur des éléments de travail (7, 59, 71) de chaque rouleau par rapport à son montage sur pivot, ces cylindres (74) étant en communication fluidique de manière que le mouvement de réglage relatif d'un cylindre (dû à la montée ou à la descente du rouleau correspondant qui suit la surface du sol) entraîne un réglage de compensation automatique des autres cylindres d'actuateurs.
PCT/GB1995/001270 1994-06-04 1995-06-01 Circuit de commande de pression destine a une charrue reversible couplee a plusieurs dispositifs de preparation des sols Ceased WO1995033364A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT95921024T ATE191828T1 (de) 1994-06-04 1995-06-01 Druckregelungsanlage für einen mit einer vielzahl angekoppelter saatbeetaufbereitungsvorrichtungen fortgesezten umkehrpflug
DE69516361T DE69516361T2 (de) 1994-06-04 1995-06-01 Druckregelungsanlage für einen mit einer vielzahl angekoppelter saatbeetaufbereitungsvorrichtungen fortgesezten umkehrpflug
DK95921024T DK0712270T3 (da) 1994-06-04 1995-06-01 Trykreguleringskreds til en kombination af en vendbar plov og flere jordbearbejdningsanordninger sammenkoblede dermed
EP95921024A EP0712270B1 (fr) 1994-06-04 1995-06-01 Circuit de commande de pression destine a une charrue reversible couplee a plusieurs dispositifs de preparation des sols
US08/592,322 US5740868A (en) 1994-06-04 1995-06-01 Pressure control circuit for a combination of a reversible plough with a plurality of soil preparation devices coupled therewith

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9411213A GB9411213D0 (en) 1994-06-04 1994-06-04 Pressure control circuit for multiple packer/reversible plough combination
GB9411213.3 1994-06-04

Publications (1)

Publication Number Publication Date
WO1995033364A1 true WO1995033364A1 (fr) 1995-12-14

Family

ID=10756207

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1995/001270 Ceased WO1995033364A1 (fr) 1994-06-04 1995-06-01 Circuit de commande de pression destine a une charrue reversible couplee a plusieurs dispositifs de preparation des sols

Country Status (7)

Country Link
US (1) US5740868A (fr)
EP (1) EP0712270B1 (fr)
AT (1) ATE191828T1 (fr)
DE (1) DE69516361T2 (fr)
DK (1) DK0712270T3 (fr)
GB (1) GB9411213D0 (fr)
WO (1) WO1995033364A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6896069B2 (en) * 2003-06-16 2005-05-24 Ventura J. Lawrence, Jr. Roll-over disk plow
FI20030990L (fi) * 2003-07-01 2005-01-02 Metalliasennus Huuhka Oy Maan muokkauslaite
US8201638B1 (en) * 2011-05-02 2012-06-19 Carl Badger Agricultural implement
DE102021128432A1 (de) * 2021-11-02 2023-05-04 Amazonen-Werke H. Dreyer SE & Co. KG Hubmechanik zum Einstellen einer Arbeitstiefe einer Rückverfestigungsvorrichtung eines Drehpflugs

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US3566974A (en) * 1968-11-20 1971-03-02 Arnold F Kopaska Plow mulcher
EP0180261A1 (fr) * 1984-09-28 1986-05-07 C. van der Lely N.V. Charrue
WO1987005777A1 (fr) * 1986-03-28 1987-10-08 Licencia Találmányokat Értékesito^" És Innovációs Machine de labour
WO1995002315A1 (fr) * 1993-07-10 1995-01-26 Kverneland Klepp As Charrue reversible

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US3263757A (en) * 1965-04-19 1966-08-02 Paul G Kaster Plow drawn harrow hitch
US3340936A (en) * 1965-04-20 1967-09-12 Byron L Godbersen Harrow attachment break-away connection
US3476191A (en) * 1966-08-22 1969-11-04 Charles V Schlabs Universal hitch for towing tilling implements
US3503452A (en) * 1966-11-18 1970-03-31 Byron L Godbersen Laterally tiltable harrow attachment
US3502002A (en) * 1968-04-02 1970-03-24 Whiteman Mfg Co Means for synchronizing a pair of hydraulic power cylinder actuators
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DE2612169C3 (de) * 1976-03-23 1980-08-28 Gewerkschaft Eisenhuette Westfalia, 4670 Luenen Steuervorrichtung für einen Messerschild
US4215622A (en) * 1978-09-22 1980-08-05 Clark Equipment Company Hydraulic control system
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US4640367A (en) * 1985-11-01 1987-02-03 Tractor Plow Co., Inc. Roll-over disc plow
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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3566974A (en) * 1968-11-20 1971-03-02 Arnold F Kopaska Plow mulcher
EP0180261A1 (fr) * 1984-09-28 1986-05-07 C. van der Lely N.V. Charrue
WO1987005777A1 (fr) * 1986-03-28 1987-10-08 Licencia Találmányokat Értékesito^" És Innovációs Machine de labour
WO1995002315A1 (fr) * 1993-07-10 1995-01-26 Kverneland Klepp As Charrue reversible

Also Published As

Publication number Publication date
DE69516361D1 (de) 2000-05-25
DK0712270T3 (da) 2000-07-10
EP0712270A1 (fr) 1996-05-22
DE69516361T2 (de) 2000-09-28
EP0712270B1 (fr) 2000-04-19
GB9411213D0 (en) 1994-07-27
ATE191828T1 (de) 2000-05-15
US5740868A (en) 1998-04-21

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